On 13.11.2012 10:02, Bron Gondwana wrote: > On Tue, Nov 13, 2012, at 01:43 AM, Dmitry Katsubo wrote: >> On 27.10.2012 1:50, Dmitry Katsubo wrote: >>> Dear Cyrus developers, >>> >>> I am experiencing segfaults for cyrus-imapd v2.4.16 in my environment: >>> >>> Aug 29 11:51:35 ctl_cyrusdb[3713]: segfault at 0 ip b7255d76 sp bfdff308 error 6 in libc-2.13.so[b71de000+156000] >>> Aug 29 11:51:35 cyr_expire[3728]: segfault at 0 ip b727dd76 sp bf8876e8 error 6 in libc-2.13.so[b7206000+156000] >>> Aug 29 12:03:04 lmtpd[6190]: segfault at 0 ip b7063d76 sp bfcdde18 error 6 in libc-2.13.so[b6fec000+156000] >>> Aug 29 12:03:04 lmtpd[6196]: segfault at 0 ip b71f4d76 sp bfdc4d48 error 6 in libc-2.13.so[b717d000+156000] >>> Aug 29 12:03:04 lmtpd[6197]: segfault at 0 ip b70d4d76 sp bfcf8f48 error 6 in libc-2.13.so[b705d000+156000] >>> Aug 29 12:03:37 lmtpd[7628]: segfault at 0 ip b70f8d76 sp bff07348 error 6 in libc-2.13.so[b7081000+156000] > > You have bogus data in your mailboxes.db - you need to make sure every line ends with a tab. If your dump and restore didn't add the tab, then it is broken. Hi Bron, Thanks for help. Indeed the problem is rooted in how mailboxes.db is handled. The problem which I was trying to tackle here http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=604468 was that partition name was ending with a tab, while the code expected the space. Here does the dump of header of my mailboxes.db: > 00000000 a1 02 8b 0d 73 6b 69 70 6c 69 73 74 20 66 69 6c |....skiplist fil| > 00000010 65 00 00 00 00 00 00 01 00 00 00 02 00 00 00 14 |e...............| > 00000020 00 00 00 07 00 00 00 46 00 00 15 f0 50 a1 8d b0 |.......F....P...| > 00000030 00 00 01 01 00 00 00 00 00 00 00 00 00 00 00 90 |................| > 00000040 00 00 00 90 00 00 01 14 00 00 01 14 00 00 01 14 |................| > 00000050 00 00 06 6c 00 00 06 6c 00 00 00 00 00 00 00 00 |...l...l........| > 00000060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| > * > 00000080 00 00 00 00 00 00 00 00 00 00 00 00 ff ff ff ff |................| > 00000090 00 00 00 01 00 00 00 0b 75 73 65 72 2e 64 6d 69 |........user.dmi| > 000000a0 74 72 79 00 00 00 00 1b 30 20 64 65 66 61 75 6c |try.....0 defaul| > 000000b0 74 09 64 6d 69 74 72 79 09 6c 72 73 77 69 70 63 |t.dmitry.lrswipc| > 000000c0 64 61 09 00 00 00 00 d0 00 00 01 14 ff ff ff ff |da..............| > 000000d0 00 00 00 01 00 00 00 14 75 73 65 72 2e 64 6d 69 |........user.dmi| > 000000e0 74 72 79 2e 41 72 63 68 69 76 65 73 00 00 00 1b |try.Archives....| > 000000f0 30 20 64 65 66 61 75 6c 74 09 64 6d 69 74 72 79 |0 default.dmitry| > 00000100 09 6c 72 73 77 69 70 63 64 61 09 00 00 00 01 14 |.lrswipcda......| > 00000110 ff ff ff ff 00 00 00 01 00 00 00 19 75 73 65 72 |............user| > 00000120 2e 64 6d 69 74 72 79 2e 41 72 63 68 69 76 65 73 |.dmitry.Archives| > 00000130 2e 32 30 31 30 00 00 00 00 00 00 1b 30 20 64 65 |.2010.......0 de| > 00000140 66 61 75 6c 74 20 64 6d 69 74 72 79 09 6c 72 73 |fault dmitry.lrs| > 00000150 77 69 70 63 64 61 09 00 00 00 01 70 00 00 01 70 |wipcda.....p...p| > 00000160 00 00 02 98 00 00 06 6c 00 00 06 6c ff ff ff ff |.......l...l....| ... If you tell me, how correctly should I export and import back mailboxes.db (perhaps with db_dump / db_load). Perhaps I was trapped by this issue: > http://www.mail-archive.com/cyrus-devel@xxxxxxxxxxxxxxxxxxxx/msg00305.html as I would have dumped/restored the mailbox one day. BTW ctl_mboxlist aborts now in my environment: # ctl_mboxlist -d Aborted > That said, it shouldn't be crashing in 2.4.16! Well, there is a check for data length: while (*p != ' ' && (p - data) < datalen) { *q++ = *p++; } but still the pointer goes far beyond the expected point, perhaps causing the trouble in another place. -- With best regards, Dmitry ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus
